High schools struggle to tackle safety on the football field

The NFL adopted a new rule this season that makes it illegal for players to hit of their helmet. In other words, ramming your head into someone.

In high school football, it's been illegal to hit this way for years. But unlike in the pros, I've hardly ever seen it called in a game. Still, Nic McMaster, coach at Castro Valley High School in the San Francisco Bay area — where I'm a defensive end — tries to teach us better.

At a recent practice, McMaster scolded a linebacker for leading with his head. "Alfaro, that was horrible technique. That's why you can't lean and put your head down when you block," he called out.